Function Overloading

Write a program to explain function overloading with type, order, and sequence of arguments.

Program Code:

#include<iostream>

using namespace std;

int sum(int,int);

int sum(int,int,int);

float sum(float,int,float);

double sum(double,float);

double sum(int,float,double);

long double sum(long double,double);

void main()

{

int a=sum(4,6);

int b=sum(2,4,6);

float c=sum(3.5f,7,5.6f);

double d=sum(7,8,1.2f);

double e=sum(1,2.2f,8.6);

long double f=sum(100,80);

clrscr();

cout<<"sum(int,int) ="<<a<<endl;

cout<<"sum(int,int,int) ="<<b<<endl;

cout<<"sum(float,int,float) ="<<c<<endl;

cout<<"sum(double,float) ="<<d<<endl;

cout<<"sum(int,float,double) ="<<e<<endl;

cout<<"sum(long double,double) ="<<f;

getch();

}

int sum(int x,int y)

{

return(x+y);

}

int sum(int x,int y,int z)

{

return(x+y+z);

}

float sum(float x,int y,float z)

{

return(x+y+z);

}

double sum(double x,float y)

{

return(x+y);

}

double sum(int x,float y,double z)

{

return(x+y);

}

long double sum(long double x,double y)

{

return(x+y);

}

Output:

sum(int,int) =10

sum(int,int,int) =12

sum(float,int,float) =16.1

sum(double,float) =9

sum(int,float,double) =11.8

sum(long,double,double) =180

Thanks

Mukesh Rajput